Wienerberger Warnham Brickworks
The 23 clay bricks Wienerberger make at Warnham Brickworks, soft mud formed — Warnham Red Stock, Terracotta, Nutcombe Multi, Blenheim Multi and others. Wienerberger declare by works rather than by brick, so every brick from this site shares one figure: 276 kgCO₂e per tonne. Across their ten UK works that figure runs from 183 to 398 — a factor of 2.2 inside one company, set mostly by how the brick is formed rather than by the clay.

Carbon and evidence
Product Evidence
Evidence currently held for the Wienerberger product record.
Recorded Carbon Result
A1–A3 GWP-total per tonne, for every brick made at Warnham Brickworks — Wienerberger declare by works, so the 23 bricks from this site share one figure. GWP-fossil is 276. Across their ten UK works the range is 183–398 kgCO2e/t, and the biggest single driver is the forming process: soft-mud stock bricks run far higher than extruded ones, most starkly at Hartlebury where the two lines on one site declare 398 and 206.
Indicator: GWP-total
Wienerberger Warnham Brickworks clay bricks (HUB-4860)A1–A3 covers raw-material supply, transport to manufacture and manufacturing. It is product-stage information, not a whole-life result.
Environmental Product Declaration
EPD recorded- Coverage
- Product family
- Declared unit
- 1 tonne (declared unit mass 1000 kg)
- Programme
- EPD Hub
- Registration
- HUB-4860
- Standard
- EN 15804:2012+A2:2019, ISO 14025
- Valid until
- 2027-12-02
- Verification
- Third-party verified
Keyed on the brickworks, not a single product — averaged over "multiple products", data year 2021. The works→brick mapping comes from Wienerberger's own EPD Summary Document, which is the only published source for it (product pages carry no factory field). Covers 23 named bricks: Warnham Red Stock, Terracotta, Nutcombe Multi, Blenheim Multi, Chartham Multi Stock, Maplehurst, Winchester Multi, Lingfield Red Multi, Olde Henfield Multi, Hurstwood Multi, Olde Horsham, Olde Cranleigh Multi, Olde Wealden Multi, Marpessa Multi, Rudgwick Multi Stock, Olde Southwater, Olde Sussex Blend, Capelwick Multi Stock, Olde County Blend, Cholesbury Dark Red Multi, Cholesbury Light Red Multi, Olde Autumn Antique, Olde Heritage Antique. The earliest expiry in the range — 2 December 2027. Warnham also makes three of the Eco-brick colours, but Eco-brick is a slimmer profile with its own (unpublished) figures and this declaration must not be attached to it.
Reported GWP Modules
Displayed as stored; modules are not added together here.
A1–A3
276 kgCO₂e
per 1 tonne of brick
Service Life — the B4 Replacement Input
150 years · EPD reference service life
The declaration states a 150-year reference service life.
≈1 installation over a 60-year building study period.
Evidence Sources
Wienerberger
Comparison Status
This result should be displayed for information only and not ranked against another product.
- • The EPD is not linked to an evidence source.
Design & Specification Notes
Qualitative notes for early design discussion. Not product-specific EPD evidence, and not a basis for numerical comparison.
The 23 clay bricks Wienerberger make at Warnham Brickworks, soft mud formed — Warnham Red Stock, Terracotta, Nutcombe Multi, Blenheim Multi and others.
Typical Uses
- •Facade cladding
- •Weather protection
- •External accents
Key Performance
Weather-resistant finish for facade exposure.
Specification Actions
- •Confirm the current EPD covers the selected product, finish and manufacturing route.
- •Calculate transport distances for primary materials.
- •Document material reuse or reclaimed content percentages.
Indicative Health & Indoor Air
Specification
- Range
- Warnham Brickworks
- Finish
- Clay facing brick, soft mud, 215 × 102.5 × 65 mm
- Service life
- 150 years
- Country of manufacture
- United Kingdom